/*
 * Copyright (c) 2008-2019 Haulmont.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.haulmont.cuba.core.sys.persistence;

import com.haulmont.cuba.core.entity.SoftDelete;
import org.springframework.stereotype.Component;

import java.util.Map;

/**
 * The implementation of additional criterion for soft delete.
 */
@Component("cuba_SoftDeleteAdditionalCriteriaProvider")
public class SoftDeleteAdditionalCriteriaProvider implements AdditionalCriteriaProvider {

    private static final String DELETE_TS_IS_NULL = "this.deleteTs is null";

    public boolean requiresAdditionalCriteria(Class entityClass) {
        return SoftDelete.class.isAssignableFrom(entityClass);
    }

    @Override
    public String getAdditionalCriteria(Class entityClass) {
        return DELETE_TS_IS_NULL;
    }

    @Override
    public Map<String, Object> getCriteriaParameters() {
        return null;
    }
}